Coefficient of Conservatism:
Coefficient of Wetness:
A species native father south in the US, but spreading, mostly as an agriculural weed, northwards. Long known sparingly from Essex County, Ontario, and collected in Wayne Co. in 2016 by Dan Gaebel. Sometimes known as Cynanchum laeve or Ampelamus albidus, we follow Krings (2001).
Though scarce as yet in Michigan, this is considered a noxious weed in several states southward and is apparently difficult to eradicate from fields because of its deep, extensive root system.